Transparent composite conductors having high work function
View Patent ↗There is provided a transparent composite conductor. The composite conductor has a first layer that includes a transparent conductive material and a second layer that includes a fluorinated acid polymer.
1. A composite conductor having a work function greater than 5.0 eV, comprising
a first layer comprising a transparent conductive material, and a second layer consisting of a fluorinated acid polymer, wherein the fluorinated acid polymer has Formula XI:
where:
R 16 is a fluorinated alkyl or a fluorinated aryl group;
c is the same or different at each occurrence and is independently 0 or an integer from 1 to 4; and
n is at least 4.
2. A composite conductor of claim 1 wherein the conductive material is selected from mixed oxides of the Group 12, 13, and 14 elements; metals; and conductive polymers.
3. A composite conductor of claim 2 wherein the conductive material is selected from indium-tin-oxide, indium-zinc-oxide, aluminum-tin-oxide, and antimony-tin-oxide.
4. A composite conductor of claim 2 wherein the conductive material is selected from gold, silver, copper, and nickel.
5. A composite conductor of claim 2 wherein the conductive material is selected from homopolymers and copolymers of thiophenes, pyrroles, anilines, and polycyclic aromatics, any of which may be substituted or unsubstituted.
6. An electronic device comprising a composite conductor of claim 1 .